Registration Dossier
Registration Dossier
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EC number: 231-100-4 | CAS number: 7439-92-1
Surface tension
Administrative data
- Endpoint:
- surface tension
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted
- the study does not need to be conducted because surface activity is not a desired property of the material
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
The study is waived in accordance with REACH Annex VII, Section 7.6, Column 2.
The surface tension of a substance is defined as a property of liquids arising from unbalanced molecular cohesive forces at or near the surface, as a result of which the surface tends to contract and has properties resembling those of a stretched elastic membrane. Upon contact with water in the presents of air, lead metal will be converted to lead hydroxides and is only susceptible to a low degree to dissolution, yielding dissociated lead cations in aqueous solution which will be subject to subsequent precipitation to inorganic compounds such as hydroxides and carbonates under ambient conditions. Neither the dissolved cationic lead, nor any of the other precipitation products can reasonably be expected to exert any surface active properties, and those properties are also not desired.
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
